[quagga-dev 3682] Re: BGP distribution into OSPF / next-hop is dropped?
paul at clubi.ie
Sun Sep 25 14:32:15 BST 2005
On Sat, 24 Sep 2005, Hasso Tepper wrote:
> Advertising router is to specify router-id of OSPF router which originates
> route into OSPF domain. From RFC2328 (12.1.5):
> "This field specifies the OSPF Router ID of the LSA's originator."
But you can set the forwarding-address (the next-hop field
essentially) of the external-LSA to whatever you want, including to a
next-hop other than your own (not a particularly good idea, ISTR).
> I'm not aware of any standard behaviours which could handle this
> (IMHO stupid) situation. In theory you can handle this situation
> with tags though.
Nah, can do it with forwarding-address too I think.
But that raises the question:
when redistributing BGP into OSPF, exactly what should be given as
the next-hop? The BGP NEXT_HOP or the resolved on-link next-hop?
I think people'd get annoyed if it was anything but the latter..
Paul Jakma paul at clubi.ie paul at jakma.org Key ID: 64A2FF6A
Good day for a change of scene. Repaper the bedroom wall.
More information about the Quagga-dev